https://blog.haitai-social.com/note/%E7%B3%BB%E7%BB%9F%E7%90%86%E8%AE%BA%E8%AF%BE%E7%A8%8B/%E6%81%B6%E6%84%8F%E4%BB%A3%E7%A0%81%E5%88%86%E6%9E%90/04/Recent content in 04 on 蛇索尼 AidenHugo -- gohugo.iozh-CNshesl-meow@qq.com (佘崧林)shesl-meow@qq.com (佘崧林)Mon, 10 Jun 2019 04:41:10 +0800https://blog.haitai-social.com/note/%E7%B3%BB%E7%BB%9F%E7%90%86%E8%AE%BA%E8%AF%BE%E7%A8%8B/%E6%81%B6%E6%84%8F%E4%BB%A3%E7%A0%81%E5%88%86%E6%9E%90/04/lab4-1/Mon, 10 Jun 2019 04:41:10 +0800shesl-meow@qq.com (佘崧林)https://blog.haitai-social.com/note/%E7%B3%BB%E7%BB%9F%E7%90%86%E8%AE%BA%E8%AF%BE%E7%A8%8B/%E6%81%B6%E6%84%8F%E4%BB%A3%E7%A0%81%E5%88%86%E6%9E%90/04/lab4-1/用 IDA pro 打开文件： 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 int __cdecl main_0(int argc, const char **argv) { int result; // eax if ( argc == 2 ) { if ( !j_strcmp(argv[1], "topsecret") ) printf("You found the password! Congratulations!\n"); else printf("Fail!\n"); result = 0; } else { printf("Usage: crackme-123-1 password\n"); result = 1;https://blog.haitai-social.com/note/%E7%B3%BB%E7%BB%9F%E7%90%86%E8%AE%BA%E8%AF%BE%E7%A8%8B/%E6%81%B6%E6%84%8F%E4%BB%A3%E7%A0%81%E5%88%86%E6%9E%90/04/lab4-2/Mon, 10 Jun 2019 04:41:10 +0800shesl-meow@qq.com (佘崧林)https://blog.haitai-social.com/note/%E7%B3%BB%E7%BB%9F%E7%90%86%E8%AE%BA%E8%AF%BE%E7%A8%8B/%E6%81%B6%E6%84%8F%E4%BB%A3%E7%A0%81%E5%88%86%E6%9E%90/04/lab4-2/用 IDA pro 打开文件，分析伪代码： 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 int __cdecl main_0(int argc, const char **argv) { int result; // eax if ( argc == 2 ) { if ( !j_strcmp(argv[1], "alligator") ) printf("You found the password! Congratulations!\n"); else printf("Fail!\n"); result = 0; } else {https://blog.haitai-social.com/note/%E7%B3%BB%E7%BB%9F%E7%90%86%E8%AE%BA%E8%AF%BE%E7%A8%8B/%E6%81%B6%E6%84%8F%E4%BB%A3%E7%A0%81%E5%88%86%E6%9E%90/04/lab4-3/Mon, 10 Jun 2019 04:41:10 +0800shesl-meow@qq.com (佘崧林)https://blog.haitai-social.com/note/%E7%B3%BB%E7%BB%9F%E7%90%86%E8%AE%BA%E8%AF%BE%E7%A8%8B/%E6%81%B6%E6%84%8F%E4%BB%A3%E7%A0%81%E5%88%86%E6%9E%90/04/lab4-3/还是用 IDA pro 分析，得到伪代码： 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 signed int __cdecl main_0(int a1, int a2) { signed int result; // eax if ( a1 == 3 ) { if ( !j_strcmp(*(const char **)(a2 + 4), "suffering") )https://blog.haitai-social.com/note/%E7%B3%BB%E7%BB%9F%E7%90%86%E8%AE%BA%E8%AF%BE%E7%A8%8B/%E6%81%B6%E6%84%8F%E4%BB%A3%E7%A0%81%E5%88%86%E6%9E%90/04/lab4-4/Mon, 10 Jun 2019 04:41:10 +0800shesl-meow@qq.com (佘崧林)https://blog.haitai-social.com/note/%E7%B3%BB%E7%BB%9F%E7%90%86%E8%AE%BA%E8%AF%BE%E7%A8%8B/%E6%81%B6%E6%84%8F%E4%BB%A3%E7%A0%81%E5%88%86%E6%9E%90/04/lab4-4/又是用 IDA pro 分析文件，得到： 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 signed int __cdecl main_0(int a1, const char **a2) { signed int result; // eax if ( a1 == 2 ) { if ( !j_strcmp(*a2, "game3.exe") ) { if ( !j_strcmp(a2[1],